diff --git a/src/ezdxf/acc/construct.pyx b/src/ezdxf/acc/construct.pyx
index 1910eeda2..f63a807a4 100644
--- a/src/ezdxf/acc/construct.pyx
+++ b/src/ezdxf/acc/construct.pyx
@@ -330,7 +330,8 @@ def world_mercator_to_gps(double x, double y, double tol = 1e-6) -> tuple[float,
     used by GPS.
 
     Args:
-        location: :class:`Vec3` object, z-axis is ignored
+        x: coordinate WGS84 World Mercator
+        y: coordinate WGS84 World Mercator
         tol: accuracy for latitude calculation
 
     """
diff --git a/src/ezdxf/math/_construct.py b/src/ezdxf/math/_construct.py
index e0e77abf0..650243e8d 100644
--- a/src/ezdxf/math/_construct.py
+++ b/src/ezdxf/math/_construct.py
@@ -328,7 +328,8 @@ def world_mercator_to_gps(x: float, y: float, tol: float = 1e-6) -> tuple[float,
     used by GPS.
 
     Args:
-        location: :class:`Vec3` object, z-axis is ignored
+        x: coordinate WGS84 World Mercator
+        y: coordinate WGS84 World Mercator
         tol: accuracy for latitude calculation
 
     """